Title:
自動車用電動流体ポンプ
Document Type and Number:
Japanese Patent JP7083895
Kind Code:
B2
Abstract:
An electric fluid pump for a motor vehicle includes an electric drive motor which is brushless and electronically commutated. The electric drive motor includes a permanent-magnetic motor rotor having a motor shaft and at least two rotor poles, each of the at least two rotor poles having one permanent magnet embedded therein, a plurality of stator-side magnetic coils, at least two sensor magnets each emitting an axial magnetic field and each having polarities, and at least one Hall sensor which is arranged to lie eccentrically in a transverse plane so that the at least one Hall sensor detects the axial magnetic fields of the at least two sensor magnets. The at least two sensor magnets are magnetized diametrically. The at least one Hall sensor is arranged to detect the polarities of each of the at least two sensor magnets during one revolution of the permanent-magnetic motor rotor.
Inventors:
Marubashi, Alessandro
Schultz, Christian
Burger, Frank
Grogasa, Martin
Joshiko, Vitold
Schultz, Christian
Burger, Frank
Grogasa, Martin
Joshiko, Vitold
Application Number:
JP2020522978A
Publication Date:
June 13, 2022
Filing Date:
October 25, 2017
Export Citation:
Assignee:
PIERBURG PUMP TECHNOLOGY GMBH
International Classes:
H02K29/08; F04B17/03; F04C15/00; F04D13/06; F04D29/00; H02K7/14; H02K11/215
Domestic Patent References:
| JP2016052199A | ||||
| JP2015091139A | ||||
| JP2012205355A | ||||
| JP2015012782A | ||||
| JP2001128417A |
Foreign References:
| WO2017033239A1 |
Attorney, Agent or Firm:
Tatsuya Saito